contact-chooser: when searching, make sure that the first matching item is selected
contact-chooser: when searching, make sure that the first matching item is selected

So user can just type the phone number of the contact he wants to call and hit
enter.

https://bugzilla.gnome.org/show_bug.cgi?id=661993

GNOME/telepathy-account-widgets,GNOME/telepathy-account-widgets,Distrotech/telepathy-account-widgets,Distrotech/telepathy-account-widgets,GNOME/telepathy-account-widgets